ly'?◑From a question-and-answer survey.◑From an official source.◑Just according to the China Consumer Association.◑This article doesn't tell us about this.

A . 增大 B . 降低 C . 无变化

A . pageContext.setAttribute（"name"， theValue） B . pageContext.setAttribute（"name"， getSession（）） C . pageContext.getRequest（）.setAttribute（"name"， theValue） D . pageContext.getSession（）.setAttribute（"name"， theValue） E . pageContext.setAttribute（"name"， theValue，PageContext.PAGE_SCOPE） F . pageContext.setAttribute（"name"， theValue，PageContext.SESSION_SCOPE）

A . portable ventilation system B . flame safety lamp C . self-contained breathing apparatus D . gas mask

A . A、管段计算长度 B . B、管道附件的当量长度 C . C、管段几何长度 D . D、管道附件的长度

A . A.无标志 B . B.一个点 C . C.二个点 D . D.三个点

A . 曲轴、凸轮轴 B . 螺旋桨叶片、铆钉 C . 油泵壳体 D . 高强螺栓

A . 正确 B . 错误

A . 24 B . 48 C . 72 D . 96

A . bow line B . breast line C . stern line D . spring line

A . 防锈铝合金，可通过时效提高强度和硬度 B . 防锈铝合金，不可通过时效提高强度和硬度 C . 硬铝合金，可通过时效提高强度和硬度 D . 硬铝合金，不可通过时效提高强度和硬度

若<img src='https://img2.soutiyun.com/ask/2021-01-01/978349143854614.png' />和B=|ly=3x-2},则A∩B为(). <img src='https://img2.soutiyun.com/ask/2021-01-01/978349161758638.png' />

A.deverbal adjective suffix B.adverb suffix C.denominal adjective suffix D.both B and C

B.paying closer attention C.Secely yours D.writing to apologize for E.related to F.instead of detention G.Promise H.were discussing Dear Mrs.Smith, I am____1___passing notes in class.I realize that you__2____important concepts that are going to help us write our upcoming analysis essays and do well in the final exams, and I should have been____3____.___4_____， I'll limit my classroom communication to helpful comments that are_____5___the subject matter and wait to discuss personal things until after class. I also wanted to thank you for giving me a warming___6_____because my coach would have benched me if I had been late to practice.I___7_____ you won't have to make that decision again.__8____ Kelly Tammen